英语中表达“困难”的词汇有difficult、difficulty、hardship、trouble等,各有区别。difficult是形容词,描述事物性质,如“This problem is difficult”;difficulty是名词,指具体挑战,常用句式“have difficulty (in) doing sth”,如“He has difficulty understanding movies”。hardship侧重生活或环境的艰难困苦,如“endured economic hardship”...